Install dock driver for ubuntu

This is one example and that (Lenovo) dock driver isn't the best possible driver.

• At first you need to disable secure boot on BIOS
• Then you can install this driver for lenovo dock https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu
• When you have downloaded that package, extract folder e.g download folder
• Go to that extracted folder and open terminal from there
• In terminal use next few commands:
  • sudo chmod +x display (use tab, that you get rest of the name)
  • sudo ./ display (use tab, that you get rest of the name)
• Restart your computer and it should work then